Comment 14 for bug 186262

One workaround for this is to reduce the number of words in the title. The problem occurs because Launchpad does a full text search against a very big set of bug titles, and the more words in your bug title the longer that search will take.

If you reduce the number of words you use in your initial title you will increase the risk of filing a duplicate, but I don't think you need worry about that overmuch. Duplicates are cheap; better to file a dupe than no bug at all.

In order to fix this we need to land the code for asynchronous dupe searches (bug 358510). I'm tempted to mark this as a duplicate of that bug, because that would substantially fix the problem.